A Cuyahoga Falls man was arrested Saturday after police said he attempted to buy a 10-year-old girl for sex.

Alliance police arrested Robert W. Thomas Jr., 36, of 1964 Tudor Street, about 5:15 p.m. after an undercover officer arranged a meeting with him in the 2300 block of West State Street. The arrest was the result of a one-week investigation, according to a news release from the Alliance Police Department.

Thomas allegedly used an online site to ask if anyone would arrange a "marriage" with their daughter and said he was in Northeast Ohio.

An officer with the Ohio Internet Crimes Against Children Task Force responded, and during the ensuing conversation, Thomas requested a girl in the 5- to 8-year-old age range. He reportedly offered to pay $400 for a 10-year-old girl to keep at his home for sex and "train her to please him."

Thomas arrived with cash in hand to purchase the child, according to the news release. He was met by a team of officers when he went to retrieve the child from a vehicle and arrested.

Police then obtained a search warrant for Thomas' home in Cuyahoga Falls and seized a computer, electronic storage devices, sexual paraphernalia, videos and several guns - including handguns, assault rifles and a rifle with a grenade launcher mounted on it.

Thomas was charged with trafficking in persons, attempt to commit kidnapping, attempt to commit rape and possession of criminal tools, all felonies. He is being held in the Stark County Jail on a $2 million bond and will be arraigned Monday in Alliance Municipal Court.

The Canton office of the FBI and Cuyahoga Falls Police Department assisted in the investigation.